Guide wire take-up device



Jlm 2, 1931. B, T WILEMAN I 1,807,769

GUIDE WIRE TAKE-UP DEVICE Filed Jan. l0, 1931 E15- f5-J- ATTORNEY Patented .lune 2, Q

UNITED STATES PATENT OFFICEN BERTRAM T. WILEMAN, F DETROIT, MICIGAN, .ASSGrNOBI 'EO CARL A. BOEHM, OF

DOVER, NEWT JERSEY GUIDE WIRE TAKE-UP DEVICE Application led January 10, 1931. Serial No. 507,787.

My invention relates to a means for tightening guide wires used at each end of a window shade to guide same.

One object of my invention is to provide a means to take up slack in guide wires used in e'ective adjustment to take up slack and to provide a means for locking said adjusting means.

These and other objects will appear in the following description and drawings, in which Figure 1 is a front elevational view of a shade with vertically positioned guide wires at each end thereof;

Fig. 2 is an enlarged elevational view, with part shown in section, of one form of a guide 2-0 Wire tightener in combination with a shade roller support bracket and a shade;

Fig. 8 is a section taken on the line 3-3 of Fig. 2 showing a shade roller bracket with a tightening member attached thereto Fig. 4 is an elevational view similar to Fig.

2, of a modified form in which the wire tightening means is attached to a sill member; and

Fig. 5 is another form showing a wire tightening member attached to an outside bracket.

A window shade 10 is mounted in inside brackets 12 secured to the inside surface of a window jamb 14 and has a dowel 16 at the bottom thereof, the ends of which project beyond the edges of the shade. Guide wires 18 are adapted to engage clearance openings 20 in the projecting portions of said dowel 16, and are secured at one end by anchor straps 22 fastened to the sill 24.

The roller brackets 12 are provided with suitable bosses 26 moulded or formed inte grally therewith and have screw threaded openings 28 adapted to receive screws 30, each also being provided withV a lock nut 32 and having a small aperture 32 through their Shanks.

The upper end of each wire 18 is passed through the aperture 34 in the screw 30 and pulled tight by applying a wrench or screw driver to the head of the screw and turning same, the wire being drawn around the shank of said screw 30 as in Fig. 3. When tightened suiiciently, the wrench is then applied to the lock nut 32 to bring the same into engagement with the face of the boss 26 to lock the screw in its set position.

In time the wires become slack and it has always been difiicult to take up all of this slack conveniently. With my device, all that is required is to back olf the lock nut 32 and turn the screw 30 slightly, which will exert a pull in a vertical direction upon the wire 18, and when the slack has been taken out the lock nut is again brought into engagement with the boss 26 to lock the screw in its adj usted position.

This arrangement is particularly adapted for heavy shades such as the slatted, or wooden stave type, which admit light through the interstices between said staves.

A modified form of take-up device is shown in Fig. 4, in which the take-up end is mounted at the bottom of the take-up wire instead of at the top. This take-up device comprises a bracket 36 which is secured to the sill 24 and has .a boss 38 provided with a screw threaded opening 40 adapted to receive a screw 42, said screw being provided with a lock nut 44. One end of the wire 18 is secured to a lug 46 on the bracket 12 by means of a screw 48 and the opposite end'is passed through the opening 20 in the dowel 16', then through the aperture 50 in the adjusting screw 42. The take-up adjustment is identical to that described before, eXcept that the wire is pulled downward instead of upward. Y

Brackets 12 and 12 are known as inside brackets which are used when there is suificient space on the window jambs for same, but where space does not permit their use, outside brackets of the type shown in Fig. 5 are used. This bracket comprises an inwardly disposed arm 52 having a flanged base 54 which is secured to the window j amb 56.

To apply my take-up device to this form, I place the adjusting screw 58 in a bossV 60 located on one face of the bracket between the roller mounting center 62 and the flanged base 54 of said bracket. A guide wire 18:11 is secured to an anchor member 64 also fasion tened to the jarnb 56, then passed through an opening 2Oa in the doWel 16a, and is taken up on the adjusting screw 58 in the salne Way as stated before.

Having described my invention, I Claim:

In a roller shade bracket, an adjustable screw inounted in said bracket and having an aperture in which the free end of a shade guide Wire is inserted, said Wire being adapted to be pulled tight by turning said adjusting screw and secured in said tightened position by ineans of a lock nut on said screw.

In testimony whereof, I have signed my naine hereto.

BERTRAM T. VVILEMAN. 

